Abstract
In their Comment, Rehman and Ahmad have noted that the damping rate of Langmuir oscillations in a q-nonextensive electron-positron plasma is always negative and so resulting only in Landau damped oscillations and no unstable modes. As a Reply, I would like to resolve the origin of the misleading result in Phys. Rev. E 87, 053112 (2013)10.1103/PhysRevE.87.053112, which had arisen from a misprint in numerical programming of one of the equations there. Furthermore, I would like to point out that this picture is not solely connected to the problem of Langmuir oscillations in an electron-positron plasma, but this is in fact a reemphasizing of the stability of q distribution as a decreasing function with velocity. In this Reply, the corrected and modified pattern of the Landau damping rate of Langmuir oscillations in an electron-positron plasma is given in the superextensive region q<1 (the subsection involved an inappropriate result) and the modified results are confirmed. Hereby, it is confirmed that all analytical solutions of Phys. Rev. E 87, 053112 (2013)10.1103/PhysRevE.87.053112 are true and the misleading result there arose from a misprint in numerical programming of one of the equations.
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